Chattopadhyay Sanat
SEC insider (Form 3/4/5 filer). CIK 0001670690. Director at ASHLAND INC. (ASH) and 1 other issuer. 17 reported Form 4/5 transactions since Sep 2024; latest on Sep 30, 2026. Located in WILMNGTON, DE.
Companies Chattopadhyay Sanat has filed insider reports for
- ASHLAND INC. (ASH): Director
- Merck & Co., Inc. (MRK): Officer, Exe V-P & Pres. MMD
Chattopadhyay Sanat
CIK: 0001670690
Transaction Breakdown
High conviction signal
Position reduction
Derivative conversions
Compensation grants
Gifts, tax withholding, conversions, dispositions to the issuer and other codes
Discretionary Trading P&L
Holdings
Transaction History (17 total)
- Sep 30, 2026ASH
ASHLAND INC.
AwardDirectCommon Stock Units
212 shares at avg. $67.92- - Jun 30, 2026ASH
ASHLAND INC.
AwardDirectCommon Stock Units
218 shares at avg. $65.89- - Apr 29, 2026MRK
Merck & Co., Inc.
ExerciseDirect2.6K shares at avg. $110.03$286K - Apr 29, 2026MRK
Merck & Co., Inc.
Tax PaymentDirect1.1K shares at avg. $110.03$124K - Mar 31, 2026ASH
ASHLAND INC.
AwardDirectCommon Stock Units
258 shares at avg. $55.61- - Jan 26, 2026MRK
Merck & Co., Inc.
AwardDirect13.9K shares at avg. $107.40$1.5M - Jan 20, 2026ASH
ASHLAND INC.
AwardDirectRestricted Stock Units
2.4K shares at avg. $61.23- - Dec 31, 2025ASH
ASHLAND INC.
AwardDirectCommon Stock Units
245 shares at avg. $58.67- - Sep 30, 2025ASH
ASHLAND INC.
AwardDirectCommon Stock Units
300 shares at avg. $47.91- - Jun 30, 2025ASH
ASHLAND INC.
AwardDirectCommon Stock Units
286 shares at avg. $50.28-
| Type | Shares | Price | Ownership | |||
|---|---|---|---|---|---|---|
| Sep 30, 2026 |  ASH ASHLAND INC. | Award Common Stock Units | 212 | $67.92 | - | Direct |
| Jun 30, 2026 | ASH ASHLAND INC. | Award Common Stock Units | 218 | $65.89 | - | Direct |
| Apr 29, 2026 |  MRK Merck & Co., Inc. | Exercise | 2,597 | $110.03 | $285,748 | Direct |
| Apr 29, 2026 | MRK Merck & Co., Inc. | Tax Payment | 1,130 | $110.03 | $124,334 | Direct |
| Mar 31, 2026 | ASH ASHLAND INC. | Award Common Stock Units | 258 | $55.61 | - | Direct |
| Jan 26, 2026 | MRK Merck & Co., Inc. | Award | 13,880 | $107.40 | $1,490,712 | Direct |
| Jan 20, 2026 | ASH ASHLAND INC. | Award Restricted Stock Units | 2,449 | $61.23 | - | Direct |
| Dec 31, 2025 | ASH ASHLAND INC. | Award Common Stock Units | 245 | $58.67 | - | Direct |
| Sep 30, 2025 | ASH ASHLAND INC. | Award Common Stock Units | 300 | $47.91 | - | Direct |
| Jun 30, 2025 | ASH ASHLAND INC. | Award Common Stock Units | 286 | $50.28 | - | Direct |
1-10 of 17 transactions